Lock with a staple-type bolt

ABSTRACT

The lock comprises in a casing a hook formed by an arm of a pivoting lever and maintained by a spring in the locking position in a staple; the casing has a guide for the staple and is comprised of a seating in which there slides an ejector pushed towards the exterior of the seating by springs so that it is in contact with the support of the staple before the end of the movement of the latter towards the hook for the locking; during the unlocking by a remote control causing the hook to pivot, the ejector removes the support from the lock. The lock is used in automobiles.

I United States Patent 1 1 1 1 3,743,335 Reilhac et a1. ,Hnly 3, 1973[54] LOCK WITH A STAPLE-TYPE BOLT 2,864,635 12/1958 Lindner 292/D1G. 14g Inventors: Andre Re y Soetaert, both 2,508,090 5/1950 Beems et a1.292/D1G. 14

f Bmancourt, France FOREIGN PATENTS OR APPLICATEONS 855,617 12/1960 G292/125 [73] Asslgneez Regie Nationale Des Usines Renault, manyBlnancoum France Primary Examiner--Marvin A. Champion AssistantExaminer-Robert A. Hafer 22 F l=dz I 12 l 7 1 l b y 9 lAttorney-Stevens, Davis, Miller 8!. Mosher 21 App]. No 161,712

[57] ABSTRACT [30] Foreign Application priority Data The lock comprisesin a casing a hook formed by an Aug; 4 1970 France 7028688 arm of apivoting lever and maintained by a spring in the locking position in astaple; the casing has a guide [52] U5. CL". 292/127 292/D[G 14 292");43 for the staple and is comprised of a seating in which 32/131672 thereslides an ejector pushed towards the exterior of [51 Int. Cl. E05c111/10 the sealing by Springs that h is with the 58 Field of Search292/121 122 124 support of the staple hefm and movemeh ,DIG, 0f thelatter towards the hook for IOCking; during 43 i the unlocking by aremote control causing the hook to pivot, the ejector removes thesupport from the lock. [56] References Cited The lock is used inautomobiles.

UNITED STATES AT TS 3 Claims, 7 Drawing Figures 2,161,519 6/1939 Loftinet a1. 292/127 3,572,790 3/1971 Kapanka 292/125 LOCK WITH A STAPLE-TYPEBOLT This invention relates to a lock with a staple-type bolt, used inparticular for a front bonnet or boot lid of a vehicle.

There are used currently for closing automobile bon' nets locks whichlock a closure member in the form of a staple. The latter is fixed toone of the two members which may be applied one against the other toeffect the closure. The staple is arranged in such a way that justbefore the end of the closure movement it penetrates into the lockfitted into the opposite member.

Locks of this type are comprised of a staple immobilizing a catch orhook which is mounted so as to pivot and which is held in the closedposition by a spring. The upper part of this hook is of such a shapethat its contact with the bar of the staple causes by reciprocal slidingthe pivoting of the hook and its retraction in relation to this stapleup to the end of movement of the latter, limited by the contact of thetwo aforementioned members. Locks of this type have the advantage ofbeing able to be controlled by operating a pull-handle or similarmember; but they generally have the disadvantage of poor longitudinaland/or transversal retention.

This invention relates to a lock of the abovementioned type whichobviates the disadvantage mentioned by ensuring longitudinal retentionin the event of a shock and holding in position in all directions. It ischaracterized in that the hook is formed by an arm of a pivoting leverarranged in a casing which provides a guide in all directions for thestaple and comprises a seating in which there slides an ejector guidedparallel to the staple, springs which push this ejector towards theexterior of the seating in such a way that it is in contact with thestaple support before the end of the movement of the staple towards thebook so as to be locked, whereas, during the unlocking of the staple bya remote control causing the hook to pivot, the ejector raises thestaple support so as to remove it from the lock and to withdraw thestaple from the grip of the hook.

Other features of the invention will appear in the following descriptionof one form of embodiment of the lock, given by way of example withreference to the attached drawings, in which:

FIG. 1 is a front view of the lock and its bolt, represented separatedfrom one another;

FIG. 2 is a side view of the two parts in FIG. 1;

FIG. 3 shows in perspective the lock and bolt in the open position;

FIG. 4 shows in perspective the lock and bolt in the closed position;

FIG. 5 shows a section through the lock along the line V--V in FIG. 1;

FIG. 6 is a section along the line VI-VI' in FIG. 2;

FIG. 7 shows a section through the lock along the line VII-VII in FIG.1.

Referring to FIGS. 1 and 2 there may be seen on one side a bolt 1 formedby a U-shaped staple 2 which is welded on to a rectangular plate 3fitting for example into the striking edge of a cover or lid (notshown). The latter can pivot about a hinge parallel to the strikingedge.

The lock situated below the staple is comprised of a casing 4 of castmaterial reinforced laterally by two ribs 5 and by two flanges 6. Eachflange has an oval hole 7 enabling the lock to be fixed on to theinternal wall (not shown) of the boot lid closed by the lock.

The casing 4 has a right rectangular section in its upper portion. Oneof its front faces, visible in FIG. 1, has at its lower part arectangular opening 8. The opposite front face has an oblong opening 9shown in FIGS. 2 and 7 and whose axis of symmetry is located in thecenter plane of FIG. 7.

On the inside of the casing 4, as shown in the FIGS. 1 and 2, there isarranged a lever 11 articulated about a pivot pin 12 whose ends areaccornodated in holes in the lateral faces 13, 14, of the casing 4 andwhich is parallel to the upper face 10 of the casing. An arm 15 of thelever 11 is in the shape of a hook and fits into the oblong opening 9 ofthe casing 4; the end of the other arm 16 emerges from the casingthrough the rectangular opening 8.

In the upper part of the casing; 4 there is formed an oblong opening 17for guiding the staple 2, as shown in FIGS. 5 and 7. The center axis ofthis opening is parallel to the pivot pin 12 of the lever l l andslightly offset in relation to the front face provided with the opening9. The opening 17 is joined with the upper flat face 10 of the casing bya chamfering 18 which enables a good penetration of the staple into theinterior of the casing.

As shown in FIGS. 5 to 7, a second part of the casing 4 constitutes theseating for at least one ejector 22. This seating is bounded by the twolateral faces l3, 14 of the casing, by a partition 19, by the front part20 of the easing and by a bottom 21. The ejector 22 is of similar form,for example, to that of a dead bolt of a lock and has two parallelcavities 23, 24 in which there are ac comodated the upper parts of thethrust springs 25, 26, whose lower parts rest on the bottom 21 of theejector seating. The springs 25, 26 try to push the ejector outwards.

The ejector seating has likewise two slots 27, 28 provided in thelateral faces 13, M of the casing 4 substantially in the central sectionof the ejector represented in FIG. 6. The ejector 22 in turn has at thelower ends of its lateral faces 29, 30, two lugs 31, 32 which slide inthe two slots 27, 2h. The purpose of these lugs is to limit the traveltowards the exterior of the ejector 22 and to keep it in the lock whenthe latter is situated in the open position in FIGS. 2 and. 3.

The hooked lever 11 is constantly subjected to the action of a spring 33represented in FIGS. 1 and 2. This spring, of the piano wire type iswound in its central portion about the hub 11a of the lever 11', one ofits ends is applied against the bottom 21 of the seating of the ejector22, and the other end against a lug 34 of the arm 16 of the lever l 1.The spring 33 constantly pushes the arm 15 of the lever ll towards theejector 22. The end of the arm 16 of the lever 11 has an opening 35which allows the passage of a flexible steel cable 36 which, under theaction of a control arranged at a distance acting in the direction ofthe arrow F,, can cause the lever 11 to rotate about its pivot pin 12 inspite of the opposing torque applied to this lever by the spring 22 Themode of operation of the lock according to the present invention is asfollows:

During the closure of the boot lid represented in FIG. 2, when thestriking member approaches the lock, the staple 2, shown in chain lines,engages in the guide opening 17 provided in the casing l and the lowerbar of this staple slides over the back of the hook 15. This movementcauses a rotation of the lever 11, the hook moving towards the left inFIG. 2, and the staple passes beneath the hook which then regains itsinitial position and immobilises the staple 2. During the movement ofthe staple the plate 3 forces the ejector 22 into its seating. Theejector then occupies the position shown in chain lines in FIG. 2 andthat in FIG. 4 and its springs 25 and 26 are strongly compressed.

During the opening of the boot lid by means of a remote control exertingin the direction of the arrow F in FIG. 2; an action on the end of thearm 16 of the lever 11, the latter pivots on the pivot pin 12 and allowsthe unlocking of the bolt 1 by retraction of the hook 15. The ejector 22under the pressure of the springs 25, 26 then raises the plate 3 of thestaple 2 which is released and allows the free movement of the lid inthe opening direction.

We claim:

1. A lock with a staple bolt, in particular for a car bonnet or bootlid, comprising in a casing a pivoting hook enabled to engage in astaple mounted on a support, said hook being formed by an arm of a leverpivoting on a pin and maintained in the locking position by a spring andenabled to be remotely controlled, an ejector sliding in a seating andguided parallel to the staple by an opening on the upper part of thecasing, resilient means pushing the ejector towards ejector exterior andlocated in cavities of the EJECTOR and in the seating, wherein saidejector seating has lateral walls formed by the lateral walls of saidcasing, each of said walls of the seating having a slot substantially inits central position, and wherein said ejector has at the lower part ofits lateral faces lugs which are enabled to slide in said slot and limitthe travel of said ejector towards the exterior.

2. A lock with a staple bolt, according to claim 1, wherein said casinghas an oblong opening in one of its faces, in which opening engages saidhook-shaped lever arm when it pivots, and an opening in the faceopposite the preceding one, through which emerges another arm of saidlever opposite the hook-shaped one, said other arm being connected to aremote controlled transmission means.

3. A look with a staple bolt, according to claim 1, wherein said springmaintaining said hook lever in the locking position of said staple iswound round said pivot pin of the lever, one of the end arms of saidspring bearing against the bottom of said ejector seating and the otherend of the spring bearing on a lug firmly attached to said arm of saidlever opposed to said hook. I

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3 743 a335 Dated 3 19 73 lmmintofls) {Andre Reilhac et a1.

It is certified that error appears in the above-identified patent and@that said Letters Patent are hereby corrected as shown below:

T In the designation of assignee, identify the joint assignee of-record:

- Automobiles Peugeot, Paris, France Signed and sealed this 27th day ofAugust 1974.

Attest:

MCCOY M. GIBSON, JR. c. MARSHALL DANN Attesting Officer Commissioner ofPatents ORM PC1-1050 (10-69) USCOMMI'DC 603764 69 fi' U.S. GOVERNMENTPRINTING OFFICE ll! OJ6-SS4,

1. A lock with a staple bolt, in particular for a car bonnet or bootlid, comprising in a casing a pivoting hook enabled to engage in astaple mounted on a support, said hook being formed by an arm of a leverpivoting on a pin and maintained in the locking position by a spring andenabled to be remotely controlled, an ejector sliding in a seating andguided parallel to the staple by an opening on the upper part of thecasing, resilient means pushing the ejector towards the exterior andlocated in cavities of the ejector and in the seating, wherein saidejector seating has lateral walls formed by the lateral walls of saidcasing, each of said walls of the seating having a slot substantially inits central position, and wherein said ejector has at the lower part ofits lateral faces lugs which are enabled to slide in said slot and limitthe travel of said ejector towards the exterior.
 2. A lock with a staplebolt, according to claim 1, wherein said casing has an oblong opening inone of its faces, in which opening engages said hook-shaped lever armwhen it pivots, and an opening in the face opposite the preceding one,through which emerges another arm of said lever opposite the hook-shapedone, said other arm being connected to a remote controlled transmissionmeans.
 3. A lock with a staple bolt, according to claim 1, wherein saidspring maintaining said hook lever in the locking position of saidstaple is wound round said pivot pin of the lever, one of the end armsof said spring bearing against the bottom of said ejector seating andthe other end of the spring bearing on a lug firmly attached to said armof said lever opposed to said hook.